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  • Title: Structural elucidation of the major phenolic glycolipid from Mycobacterium kansasii. I. Evidence for tetrasaccharide structure of the oligosaccharide moiety.
    Author: Fournié JJ, Rivière M, Puzo G.
    Journal: J Biol Chem; 1987 Mar 05; 262(7):3174-9. PubMed ID: 3818637.
    Abstract:
    Data from the literature indicate the presence, in the Mycobacterium kansasii wall, of a phenolic glycolipid called mycoside A. A tentative trisaccharide structure was proposed for the oligosaccharide part, whereas the aglycone was found to correspond to a phenol phthiocerol residue esterified by two mycocerosic acids. In the present work, structural information mainly arising from fast atom bombardment-mass spectrometry, tandem mass spectrometry, and 1H NMR of native and chemically degraded phenolic glycolipid indicates a tetrasaccharide structure for the inherent oligosaccharide. This structure is now determined as: 2,6-dideoxy-4-O-methyl-arabino-hexopyranosyl(1 alpha----3)2-O-methyl-4-O- acetylfucopyranosyl(1 alpha----3)2-O-methyl-rhamnopyranosyl(1 alpha----3)2-4-di- O-methylrhamnopyranosyl-1 alpha----phenolglycol. Evidence for the structure of the dideoxyhexose, unique in mycobacteria, is presented in the following paper (Fournié, J.-J., Rivière, M., Papa, F., and Puzo, G. (1987) J. Biol. Chem. 262, 3180-3184).
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